Backfiring under load is the result of 1 of
2 possible causes if the engine runs well otherwise. First cause is
insufficient spark strength to fire the mixture reliably, check the coil,
points and condenser. Coils can act up hot while behaving perfectly when cold.
Second cause is a lean condition, usually carb
related rather than a vacuum leak which will raise hell at idle rather than at
low vacuum levels experienced while accelerating. Check your fuel pump for
sufficient pressure and volume, check your fuel filter
Then if all else fails check the
carburetor for plugged jets or a low float level. Hope this helps, good luck!
Ernie and The Black Bitc_!!
-----Original Message-----
From: mailing-list-owner@xxxxxxxxxxxxxxxx
[mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On
Behalf Of Dave Wilker
Sent: Sunday, November 05, 2006
11:20 AM
To: mailing-list@xxxxxxxxxxxxxxxx
Subject: Re: IML: backfiring,
missing
Freedom
is never more than one generation away from extinction. We didn't pass it to
our children in the bloodstream. It must be fought for, protected, and handed
on for them to do the same.
- Ronald Reagan
-----
Original Message -----
Sent: Sunday, November 05,
2006 10:57 AM
Subject: IML:
backfiring, missing
I
need the help of the Imperial tech's. My 63 just started to backfire
and/or miss on when I excel. When it's cold it seems to run fine but once
it warms up it runs a little rough and gets that backfiring and lurching
action. I checked the spark plugs, they seem fine. This is driving
me nuts and I'm sure it's driving other people nuts to listen to a beautiful
car make such bad noises.
